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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 25, Iss. 7 — Apr. 1, 2000
  • pp: 484–486

Thermo-optical effect and saturation of nonlinear absorption induced by gray tracking in a 532-nm-pumped KTP optical parametric oscillator

Benoît Boulanger, Jean-Philippe Fève, and Yannick Guillien  »View Author Affiliations


Optics Letters, Vol. 25, Issue 7, pp. 484-486 (2000)
http://dx.doi.org/10.1364/OL.25.000484


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Abstract

We present experiments that show that gray tracking modifies the parametric gain and the generated wavelengths of a KTP optical parametric oscillator pumped at 532 nm near degeneracy. These perturbations occur over a limited range of pump intensity. We propose a satisfactory model that takes into account photochromic damage, the thermo-optical effect, and the combined processes of creation and saturation of a two-photon absorber at 532 nm. The temperature dependence of Sellmeier equations of KTP is also established at 20–200 °C.

© 2000 Optical Society of America

OCIS Codes
(160.4760) Materials : Optical properties
(190.4400) Nonlinear optics : Nonlinear optics, materials
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.4870) Nonlinear optics : Photothermal effects
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers

Citation
Benoît Boulanger, Jean-Philippe Fève, and Yannick Guillien, "Thermo-optical effect and saturation of nonlinear absorption induced by gray tracking in a 532-nm-pumped KTP optical parametric oscillator," Opt. Lett. 25, 484-486 (2000)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-25-7-484

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